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https://www.youtube.com/watch?v=bDSmfxb1o1E
Jun 25, 2012 - Uploaded by RashaadRahh
2000 Lexus Es300 Knock Sensor Replacement - Location & Repair. ... Check engine light comes on and you ...
They are located on each head if im not mistaken on the corner near the air intake boot that goes to air filter. The cylinder head close to the radiator is 2 4 6.
Need to remove the upper and lower air intake manifold. There are two knock sensors for the front and rear pistons banks. If you plan to do this yourself it is about 1 to 2 hours. While you are at it, there is a short coolant bypass hose sitting in the same spot, replace it. Another problem with the knock sensor is the wire harness used to connect the two knock sensors into one connection sometimes wears out and contacts the metal on the engine causing false signals to the ECM, so replace this cable also.
Just did this last summer on my 99 ES300. Pretty easy.
DIYr
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